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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-writing-modes/background-position-vrl-020.xht - WPT Dashboard Interop Dashboard
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<head>
<title>CSS Writing Modes Test: 'background-position: left center' and 'vertical-rl' when document root element does not fill viewport width</title>
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
<link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#physical-only" title="7.6 Purely Physical Mappings" />
<link rel="match" href="background-position-vrl-018-ref.xht" />
<meta content="image" name="flags" />
<meta content="This test checks that 'background-position: left center' will make background-image start at left side of document root element (even in case there is resizing of the window) because background properties should not be affected by vertical writing-mode." name="assert" />
<style type="text/css"><![CDATA[
html
{
background-image: url("support/100x100-red.png");
background-position: left center;
background-repeat: repeat-y;
width: auto; /* Very important: we intentionally want the
document root element to not fill the viewport width */
writing-mode: vertical-rl;
}
div#reference-overlapping-green
{
background-color: green;
height: 100%;
position: absolute;
right: 273px;
/*
8px : body's margin-right
+
357px : pass-cdts-background-position.png's image width
+
8px : body's margin-left
-
100px : background-image width (100x100-red.png)
==========
273px is
*/
top: 0px;
width: 100px;
}
/*
This test requires a viewport width of at least (strict minimum) of 473px !
*/
]]></style>
</head>
<body>
<div><img src="support/pass-cdts-bg-pos-vrl-018.png" width="357" height="17" alt="Image download support must be enabled" /></div>
<!--
The image says:
Test passes if there is a <strong>no red</strong>.
-->
<div id="reference-overlapping-green"></div>
</body>
</html>